NumericalDifferentialEquationAnalysis`
NumericalDifferentialEquationAnalysis`
ButcherSigma
ButcherSigma[tree]
gives the order of the symmetry group of isomorphisms of tree with itself.
更多信息和选项
- To use ButcherSigma, you first need to load the Numerical Differential Equation Analysis Package using Needs["NumericalDifferentialEquationAnalysis`"].